Japan may go Gregorian

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With the Imperial era name change, Japan's Foreign Ministry is considering scrapping the use of the era name for calendar years in some of its official documents and switching to the Gregorian calendar, according to sources.
While the ministry will keep using the Japanese era calendar in documents that require consistency with papers of other ministries (including those that are budget-related), it plans to promote the use of the Gregorian calendar for documents without such restrictions.